91 week08

 到https://jsyeh.org/3dcg10/下載[source][data][win32]並解壓縮

開啟transformation檔切換模型:

v是vertex頂點 vt是貼圖座標

maya拉一個物體匯出obj檔到桌面:

複製取代到data裡面的f-16檔:

新專案glut白色茶壺並增加檔名glm.h，glm.h移動week08-1:

把glm.c改成cpp再丟到week08-1資料夾裡面codeblock右鍵add files再把glm.cpp讀入:

修改程式碼:

#include <GL/glut.h>

#include "glm.h"

GLMmodel*pmode1=NULL;

void display()

{

    if(pmodel==NULL){

        pmode1=glmReadOBJ("f-16.obj");

        glmUnitize(pmode1);///大小

    }

    glmDraw(pmode1,GLM_SMOOTH|GLM_MATERIAL);

    ///glutSolidTeapot( 0.3 );

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");

    glutDisplayFunc(display);

    glutMainLoop();

}

week08-2新專案，把week08-1複製貼上程式碼:

#include <GL/glut.h>

#include "glm.h"

GLMmodel*pmode1=NULL;

void display()

{

    if(pmode1==NULL){

        pmode1=glmReadOBJ("week08.obj");

        glmUnitize(pmode1);

    }

    glmDraw(pmode1,GLM_SMOOTH|GLM_MATERIAL);

    ///glutSolidTeapot( 0.3 );

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");

    glutDisplayFunc(display);

    glutMainLoop();

}

接收老師鋼彈的五個檔案，檔名修改並重複week08-1步驟，添加程式碼:

 glmUnitize(pmode1);

        glmFacetNormals(pmode1);

        glmVertexNormals(pmode1,90);

    glmDraw(pmode1,GLM_SMOOTH|GLM_MATERIAL);

下載opencv選第2或3，再貼上上禮拜程式碼https://gist.github.com/jsyeh/5ed01210559721ec71b659b3ffed2dd7#file-mytexture_sample-cpp:

#include <opencv/highgui.h> ///使用 OpenCV 2.1 比較簡單, 只要用 High GUI 即可

#include <opencv/cv.h>

#include <GL/glut.h>

int myTexture(char * filename)

{

    IplImage * img = cvLoadImage(filename); ///OpenCV讀圖

    cvCvtColor(img,img, CV_BGR2RGB); ///OpenCV轉色彩 (需要cv.h)

    glEnable(GL_TEXTURE_2D); ///1. 開啟貼圖功能

    GLuint id; ///準備一個 unsigned int 整數, 叫 貼圖ID

    glGenTextures(1, &id); /// 產生Generate 貼圖ID

    glBindTexture(GL_TEXTURE_2D, id); ///綁定bind 貼圖ID

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖T, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖S, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); /// 貼圖參數, 放大時的內插, 用最近點

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); /// 貼圖參數, 縮小時的內插, 用最近點

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);

    return id;

}

上傳github